In this photo released by the Royal Palace on Monday, June 2, 2014, Spain's King Juan Carlos signs a document in the Zarzuela Palace opening the way for his abdication. Spain's King Juan Carlos plans to abdicate and pave the way for his son, Crown Prince Felipe, to take over, Spanish Prime Minister Mariano Rajoy told the country Monday in an announcement broadcast nationwide. The 76-year-old Juan Carlos oversaw his country's transition from dictatorship to democracy but has had repeated health problems in recent years. (AP Photo/Spanish Royal Palace)

This is a Nov. 22, 1975 file photo King Juan Carlos speaks during his first official address as King during a ceremony where he was crowned and proclaimed King of Spain. Seated at left Queen Sofia. Spain’s King Juan Carlos it was announced Monday June 2 2014 will abdicate and pave the way for his son, Crown Prince Felipe, to take over, Spanish Prime Minister Mariano Rajoy told the country Monday in an announcement broadcast nationwide. He did not say when Juan Carlos would abdicate because the government must now craft a law creating a legal mechanism for the abdication and for 46-year-old Felipe’s assumption of power. The 76-year-old Juan Carlos oversaw his country’s transition from dictatorship to democracy but has had repeated health problems in recent years. (AP Photo/File)

MADRID (AP) — Spain's King Juan Carlos, who led Spain's transition from dictatorship to democracy but faced damaging scandals amid the nation's financial meltdown, announced Monday he will abdicate in favor of his son so that fresh royal blood can rally the nation in its time of trouble.

The king told Spaniards in a nationwide address that he started making a plan to give up the throne after he turned 76 in January.

He said that the 46-year-old Crown Prince Felipe — whose 70 percent approval rating in a recent El Mundo newspaper poll compares to his father's 41 percent — is ready to be king and will "open a new era of hope."

Juan Carlos didn't specify which problems his son must address as the next head of state for Spain. But the king stressed Felipe will need to "tackle with determination the transformations that the current situation demands and confront the challenges of tomorrow with renewed intensity and dedication."

As Spain embarks on what appears to be a sluggish but steady economic recovery, its biggest problem is the drive by the wealthy northeastern region of Catalonia to hold a secession vote in November — one labeled illegal by the central government in Madrid.

Now that Felipe is set to become king, Spain is expected to change its constitution to make sure his first-born daughter Leonor can succeed him.

The royal family has said its wants the change to ensure she is next in line to the throne in the event that Felipe's wife gets pregnant again and gives birth to a boy, who would become monarch under the current constitution.

Analysts say that could open the door to political negotiations for additional proposed constitutional changes, including demands by the leading opposition Socialist Party to grant Catalonia more autonomy or special financial benefits to ease Catalonian separatist feelings.

"I think both parties could agree on a change to accommodate the needs of Catalonia," said Antonio Barroso, a London-based analyst with the Teneo Intelligence political and business risk consulting firm. He cautioned that the process could take months.

Artur Mas, the president of Catalonia, declared that the king's abdication would not derail his plans to hold the vote asking Catalans whether they want to secede from Spain.

"We have a date with our future on Nov. 9," Mas told reporters after the king gave his speech.

The abdication was first announced Monday by Prime Minister Mariano Rajoy, who did not say when the handover would happen because the government must now craft a law creating a legal mechanism for the abdication and for Felipe's assumption of power.

Rajoy, however, said he would preside over an emergency cabinet meeting on Tuesday to draft the law which is assured of passing because his center-right Popular Party has an absolute majority in Parliament.

Far-left parties called for a national referendum to abolish Spain's monarchy after the king made his announcement and said they would hold nationwide protests Monday night. They surprised the nation May 25 by polling much stronger than expected in the European Parliament elections, taking away seats from the mainline Popular and Socialist parties.

Juan Carlos has been on the throne for 39 years and was a hero to many for shepherding Spain's democratic and economic transformation, but has had repeated health problems in recent years.

His longstanding popularity took a big blow following royal scandals, including a 2012 elephant-shooting trip he took in the middle of Spain's financial crisis during which he broke his right hip and had to be flown from Botswana to Spain aboard a private jet for medical treatment.

The king's image was also tarnished by the investigation of his son-in-law, who is suspected of embezzling large amounts in public contracts.

His daughter Princess Cristina in January was forced to testify in the fraud and money-laundering case targeting her husband Inaki Urdangarin, an Olympic handball medalist turned businessman. She became the first Spanish royal to be questioned in court since Juan Carlos took the throne.

In his speech the king did not mention any of the scandals, played down his health issues and praised the crown prince.

"My son Felipe, the heir to the throne, embodies stability," Juan Carlos said.

Felipe would presumably take the title King Felipe VI. He has a law degree from Madrid's Autonomous University and obtained a master's in international relations from Georgetown University in the United States.

Felipe is married to Princess Letizia, a former television journalist. Their daughters are ages 8 and 7.

Like his father, Felipe has traveled the globe trying to maintain Spain's influence especially in former Latin American colonies, while seeking to promote the nation's international business interests.

King Juan Carlos came to power in 1975, two days after the death of longtime dictator Francisco Franco. He endeared himself to many Spaniards, in large part by putting down an attempted military coup in 1981 when he was a young and largely untested head of state.

As Spain's new democracy matured over the years and Spain transformed itself from a European economic laggard into the continent's fourth largest economy, the king played a largely figurehead role, traveling the globe as an ambassador for the country.

He was also a stabilizing force in a country with restive, independence-minded regions like Catalonia and the northern Basque region.

"He has been a tireless defender of our interests," Rajoy said.

Juan Carlos melded the trappings of royalty with down-to-earth, regular-guy charm. The king is an avid sports fan and after the Madrid terror bombings of March 11, 2004, showed he could grieve like anyone else.

At an emotional state funeral for the 191 people killed in the train bombings by Islamic militants, Juan Carlos and Queen Sofia slowly went row-by-row through Madrid's Almudena Cathedral, clasping the hands of sobbing mourners or kissing them on the cheek.

But his patient work nearly came undone during the financial crisis, with people questioning after the elephant-hunting trip whether a hereditary monarchy was needed and whether it was worth the cost because of deep austerity measures imposed on Spaniards to prevent the country from financial collapse.

The World Wildlife Fund's branch in Spain ousted Juan Carlos as its honorary president — a title he'd held since 1968 — after deciding the hunt was incompatible with its goal of conserving endangered species. Juan Carlos took the unprecedented step of apologizing to Spaniards for his actions.

He recently said that he wanted to be remembered as "the king who has united all Spaniards."

King Juan Carlos goes down a path increasingly traveled by European royalty.

Last year Belgium's King Albert handed over the throne of his fractious kingdom to his son, Crown Prince Philippe. Two months earlier, Queen Beatrix of the Netherlands stepped down after a 33-year reign in favor of her eldest son, who was appointed King Willem-Alexander.

It was a break with tradition, but not as big as the decision early last year by Pope Benedict XVI to resign, a move that stunned Catholics around the world.

The two royal successions in Belgium and the Netherlands have been smooth and successful.

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